UHP graphite electrodes are made of petroleum coke, needle coke as raw material, coal pitch as binder, after calcination, ingredients, kneading, pressing, roasting, graphitization, machining and released in the electric arc furnace steelmaking in the form of an arc Electric energy as a conductor to heat the melting furnace.
Name | Unit | diameter of electrode 300mm-600mm | |||
standard | Actual measurement | ||||
Electrode | Nipple | Electrode | Nipple | ||
Specific electrical resistivity | μOhm • m | 6.2-6.5 | 5.5 | 5.0-6.5 | 4.5 |
Limit of mechanical resistance to bending | MPa | 10.5 | 16 | 14-16 | 18-20 |
Elastic modulus | GPa | 14 | 18 | 12 | 14 |
Ash content, not more than | % | 0.5 | 0.5 | 0.5 | 0.5 |
Bulk density, not less than | g / cm3 | 1.64-1.65 | 1.70-1.72 | 1.72-1.75 | 1.78 |
Thermal coefficient of linear expansion (100-600 ° C) | × 10-6 / ℃ | 1.5 | 1.4 | 1.3 | 1.2 |
Diameter | Length | ||||||
Nominal diameter | Actual diameter | Nominal length | tolerance | ||||
Millimeters (mm) | Inch (inch) | Max. (Max.) | Min (min) | mm | Length | the maximum | |
300 | 12 | 307 | 302 | 1600 1800 |
± 100 | -100 | -275 |
350 | 14 | 357 | 352 | ||||
400 | 16 | 409 | 403 | ||||
450 | 18 | 460 | 454 | ||||
500 | 20 | 511 | 505 | 1600/1800/2000/2200 | ± 100 | -100 | -275 |
550 | 22 | 556 | 553 | ||||
600 | 24 | 613 | 607 |
Nominal diameter | Current throughput (A) | The current density (A / cm2) | |
Millimeters (mm) | Inch (inch) | ||
250 | 10 | 9200-15100 | 21-30 |
300 | 12 | 13000-22000 | 20-30 |
350 | 14 | 20000-30000 | 20-30 |
400 | 16 | 25000-40000 | 19-30 |
450 | 18 | 32000-45000 | 19-27 |
500 | 20 | 38000-55000 | 18-27 |
550 | 48000-60000 | 18-24 | |
600 | 24 | 52000-72000 | 18-24 |
700 | 27th | 62000-95000 | 18-24 |
Graphite electrode uhp can be widely used in electric arc furnace and ladle refining furnace for steelmaking. uhp graphite electrodes can be widely used in the electric smelting furnace for producing the ferroalloy, pure silicon, yellow phosphorus, copper matte, calcium carbide and so on.
RS refractory factory as a professional graphite electrode uhp manufacturer in china, have many competitive advantages in the market. if you have demand of uhp graphite electrodes, or have some questions on uhp graphite electrode about psical and chemical indicators, please contact us for free, we will provide you with high quality uhp graphite electrodes.
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